Answer:
The beating or fanning movements of three pairs of maxilliped flagella in crabs and crayfish modify exhalent gill currents while drawing water over chemoreceptors on the head. They play an integral part both in signalling by distributing urine odours, and in active chemosensation.
Explanation:
Power plants (especially fossil-fuel based coal and gas-fired units) are frequently mentioned sources of environmental problems. List three specific types of outputs to the environment resulting from these fossil plants. Which other parts of the life cycle of producing electricity from fossil plants also contribute to these problems
Answer:
Effects of Conventional (fossil fuels & gas fired) power plants : Air pollution, Water Pollution, Land Degradation
Explanation:
Fossil power plants, that use fossil fuels for electricity generation, have various ill environmental effects
Air Pollution - Coal Power Plants emit many polluting gases into environment. Like Sulphur Dioxide, Carbon Monoxide etc, Nitrogen Oxides. The last gas is majorly emitted during process of nitrogen combustion.
Water Pollution - Coal washing process before placing it in boiler (for heat generated electricity) , circulates the same unclean water into water bodies & groundwater.
Land Degradation - The after process disposal mechanism implies untreated water & air pollutants released indiscriminately. This adversely effects the land quality & the wildlife.
If the word "diversity" means "variety" and the prefix "bio-" means "life", what do you think the word "biodiversity" in an ecosystem means?
Answer:it means a verity of life
Explanation:because like you said diversity means verity and bio means life
This sequence best represents
A) an arid region that experienced mostly uplifting forces
B) an arid region that experienced mostly erosional forces
C) a humid region that experienced mostly uplifting forces
D) a humid region that experienced mostly erosional forces
The correct answer is B. An arid region that experienced mostly uplifting forces.
Explanation
According to the graph, it can be seen that 25 million years ago the illustrated area was arid and the earth's crust had a fracture that eroded to form a table 15 million years ago as shown in the second illustration. Later, it is shown how the erosion continued to act on this area until creating different plateaus and a plain in the present time. The key to understanding these illustrations are the layers of the earth's crust that are shown because it shows how some layers are disappearing or reducing their area while the lower layers are being exposed. Therefore, the correct answer is B. An arid region that experienced mostly uplifting forces.
Since Asha is a healthy woman in her forties, she does not have Niemann-Pick disease type A. For this question, assume that she is a healthy person who is a carrier. If Asha is a carrier of the allele for Niemann-Pick disease type A, what is her genotype?
Answer:
Aa is her genotype
Explanation:
This is because since she is just the carrier and she is healthy, her genotype will be heterozygous with the allele for Nieman pick up disease recessive because it's effect is been masked by the allele that is not Nieman pick up disease because it is dorminant. Therefore , the allele for healthiness is dorminant over allele for Nieman disease.
Cross a heterozygous brown eyed father with a blue eyed mother. What percentage of the children will have brown eyes?
A) 25%
B)100%
C)75%
D)50%
Which of the following is a true description of the green alga Spirogyra sp.?
Select one:
a. The alga has a branched, multicellular, filamentous habit.
b. The chloroplast with its pyrenoids is arranged spirally throughout each filament.
c. Most of the interior of each cell is occupied by cytoplasm.
d. Gametic meiosis takes place via the process of conjugation between filaments.
T or F : viruses are NOT used in gene therapy to insert the DNA into the target cells of the patient
True or false
What are 3 astronomical objects that radio waves can detect.
Answer: Radio telescopes look toward the heavens to view planets, comets, giant clouds of gas and dust, stars, and galaxies
Explanation: By studying the radio waves originating from these sources, astronomers can learn about their composition, structure, and motion.
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Can anyone help me with my homework
Answer:
1= B. Pangea
2= A. 160 million years
3= D. 4.6 billion years
4= B. Trenches
5= B. Mountain form
Explanation:
hope this helps :)
List and describe the 5 characteristics found in all living things; be able to identify various structures or processes as representative of each characteristic.
QUESTION 10
Which choice represents the "fitness" of an individual?
O a. The physically strongest individual
b.Individuals that pass on their genetics more frequently
c. The population evolving
d.How good an organism is at caping predators
QUESTION 11
Answer:
a.the physically strongest individual
Explanation:
hope helps
Which is an advantage to using nonrenewable resources?
They can be cheaper.
They can have a lower impact on the environment.
They can be used up rapidly.
They can contribute to global warming.
Answer:
A
Explanation:
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Answer:
c
Explanation:
the question is asking about the energies. when the two cars are moving towards each other they are accelerating meaning they have kinetic energy. when they collide; on rebounding, the car regains a smaller amount of kinetic energy – this time travelling backwards. So the overall process is that kinetic energy becomes heat and spring potential energy, which results in heat, smaller kinetic energy and, hopefully, surviving occupants. so the speed of the car before and after will show the energy change
What PERCENT of a km is 234m?
(L1) The plasma membrane of a cell is selectively permeable (or semi-permeable), which means it
A.controls all cellular activities.
B.is responsible for asexual reproduction.
C.allows some materials to pass.
D.has a carbohydrate foundation,
Answer:
C. Allows some materials to pass.
Explanation:
Answer:
c
Explanation:
Being selectively permeable means that it selects what comes in and what goes out.
Gametes combine in sexual reproduction that creates a fertilized egg that will turn into a ____________.
Group of answer choices
seed
gametophyte
Spores
Sporophyte
Answer:
look in explanation
Explanation:
the answer should be B it was in quizlet!!! HINT when it comes down to english and science use quizlet it works amazingly when you can't find an answer
5.Write observation and conclusion of each of the following activities
Answer:
Water puts pressure depends on their amount.
Explanation:
On the left side, there is less quantity of water in the tube that put less pressure on the bag present at the bottom and the bag swells slightly while on the other hand, on the right side, there is more amount of water in the tube that puts large pressure on the bag located at the bottom and as a result it swells higher than the other bag so we can conclude that more water puts more pressure and less water puts less pressure.
Question 4
The sodium-potassium pump is involved in establishing the resting membrane potential.
True false question.
True
False
NEED HELP ASAPP PLZZ
WIL GIVE BRAINLIEST
Explanation:
phenotypic ratio = 9: 3: 2: 1: 1
plz mark my answer as brainlist plzzzz. hope this will be helpful to you .
What is the approximate population of humans on Earth now?
A. 1 billion
B. 6 billion
C. 3 billion
D. 60 billion
Answer:
b. 6 billion
Explanation:
Answer:
7 billion people is the answer not 6
The ability to taste the chemical PTC is determined by a single gene in humans with the ability to taste given by the dominant allele T and the inability to taste by the recessive allele t. Suppose two heterozygous tasters (Tt) have a large family. What is the likelihood that their first child will be a taster
Answer:
75%
Explanation:
This question involves a single gene coding for the ability to taste the chemical PTC. The allele coding for the ability to taste (T) is dominant over the allele coding for the inability to taste (t). This means that an heterozygous individual will have the ability to taste PTC.
According to this question, if two heterozygous tasters (Tt) cross to have a large family i.e. Tt × Tt, the following gametes will be produced by each parent;
Tt = T and t
Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:
TT, Tt, Tt - Tasters (3/4 or 75%)
tt - Non-taster (1/4 or 25%)
Note that based on the question asked, there is a 75% probability that their first child will be a taster because there is equal segregation of alleles into gametes.
How does the speed of flowing water affect its ability to erode
HELP PLZZZ!!!
Answer:
Moving water also picks up and carries particles of soil and rock. The ability to erode is affected by the velocity, or speed, of the water. ... As water slows, larger particles are deposited. As the water slows even more, smaller particles are deposited.Explanation:
How do dating methods of geological evidence prove the convolution of earth systems?
Answer:
because it can tell you how old a segment of rock is and what type of minerals are in the segment of rock
Explanation:
which of the following is NOT a nucleic acid ?
a. DNA
b. mRNA
c. tRNA
d. Protein
Answer:
reverse transcriptase
Explanation:
The following is NOT a nucleic acid is - d. protein as it is a different macronutrient or macromolecule to nucleic acid.
Nucleic acids are macromolecules of a special class found in all living organisms and also in viruses. There are two types of major nucleic acids, DNA or deoxyribose nucleic acid and RNA or ribose nucleic acid.
Nucleic acids play a role in genetic materialnucleic acid helps in protein synthesisRNA is mainly three types mRNA, messenger RNA, tRNA transfer RNA, and rRNA ribosomal RNA.DNA is normally double-strandedProtein on other hand is a different class of macromolecules that perform many roles in the cell such as, structure, function, and regulation.
Thus, the correct answer is - D. protein.
Learn more about protein:
https://brainly.com/question/22241855
Match the description with the asexual reproduction of plants.
Group of answer choices
underground stems that store nutrients and can grow into new plants
[ Choose ]
plantlets
runners
tubers
potato
[ Choose ]
plantlets
runners
tubers
tiny plants that grow on the edges of a plant's leaves
[ Choose ]
plantlets
runners
tubers
above ground stems that can develop new plants
[ Choose ]
plantlets
runners
tubers
strawberries
[ Choose ]
plantlets
runners
tubers
Answer:
plant lets I think abcdefg
Explanation:
Match the description with the asexual reproduction of plants.
Group of answer choices
underground stems that store nutrients and can grow into new plants
[ Choose ]
plantlets
runners
tubers
potato
[ Choose ]
plantlets
runners
tubers
tiny plants that grow on the edges of a plant's leaves
[ Choose ]
plantlets
runners
tubers
above ground stems that can develop new plants
[ Choose ]
plantlets
runners
tubers
strawberries
[ Choose ]
plantlets
runners
tubers
Answer:
A. Tuber is refer to as specialized storage stem of certain seed plants. Tubers are usually short and thickened and typically grow below the soil. So the patato is tuber.
Define aseˣual reproduction?Aseˣual reproduction is a type of reproduction that does not requires the union of seˣ cells or gametes.
B. a small or young plant is known as plantlet.
C. Plant runners are stem-like growths extending from a mother plant's growing point, such as a strawberry's crown.
For more information regarding aseˣual reproduction, visit:
https://brainly.com/question/423209
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what best describes the direction of the water particles
Answer:
The particles move in thy same direction as the vibrating source of the sound wave.
Explanation:
Reverse faults are the result of tension.
True or false?
Answer:
can you helppp me with dna
Gametes must carry half of their genetic material because -
A) sexual reproduction only requires one parent's genetic information
B) gametes are small and can only hold half the number of chromosomes
C) the gametes' chromosomes will be copied prior to cell division
D) two gametes will unite during fertilization to create a full set of chromosomes
Answer:
B The zygote must contain genetic information from the mother and from the father, so the gametes must contain half of the chromosomes found in normal body cells
Explanation:
hope this helps sorry if incorrect have a good rest of your day :) ❤
1. What effect does air pressure have on wind movement?
2. What happens to the density of air as it is heated?
3. It’s a hot, sunny morning in a coastal town in South Florida. Warm air is rising up from the land. Large, puffy clouds are forming overhead. Which way do you think the wind will be moving this afternoon, and what do you think will happen to the temperature?
Answer:
1. The lower the air pressure the faster the wind the higher the air pressure the slower the winds
2. When the heat of the air increases the density of the air decreases.
3. The air above the ocean will, therefore, be warmer and of low pressure than that over land which will be cooler and of relatively higher pressure. Winds will, therefore, blow seawards because winds blow from high to low-pressure systems.
Explanation:
The International Fisheries Commission was formed to:
Control halibut fishing
Help conserve salmon
Study fish biology
Develop new alternatives to trawl fishing
Answer:
control halibut fishing